diff options
Diffstat (limited to 'gnulib-m4/iconv.m4')
| -rw-r--r-- | gnulib-m4/iconv.m4 | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/gnulib-m4/iconv.m4 b/gnulib-m4/iconv.m4 index 2a7edd31..b414bfca 100644 --- a/gnulib-m4/iconv.m4 +++ b/gnulib-m4/iconv.m4 @@ -1,4 +1,5 @@ -# iconv.m4 serial 27 +# iconv.m4 +# serial 28 dnl Copyright (C) 2000-2002, 2007-2014, 2016-2024 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation @@ -74,7 +75,7 @@ AC_DEFUN([AM_ICONV_LINK], if test "$am_cv_func_iconv" = yes; then AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [ dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11, - dnl Solaris 10. + dnl Solaris 10, macOS 14.4. gl_saved_LIBS="$LIBS" if test $am_cv_lib_iconv = yes; then LIBS="$LIBS $LIBICONV" @@ -113,6 +114,35 @@ AC_DEFUN([AM_ICONV_LINK], iconv_close (cd_utf8_to_88591); } } + /* Test against macOS 14.4 bug: Failures are not distinguishable from + successful returns. + POSIX:2018 says: "The iconv() function shall ... return the number of + non-identical conversions performed." + But here, the conversion always does transliteration (the suffixes + "//TRANSLIT" and "//IGNORE" have no effect, nor does iconvctl()) and + does not report when it does a non-identical conversion. */ + { + iconv_t cd_utf8_to_88591 = iconv_open ("ISO-8859-1", "UTF-8"); + if (cd_utf8_to_88591 != (iconv_t)(-1)) + { + static ICONV_CONST char input[] = "\305\202"; /* LATIN SMALL LETTER L WITH STROKE */ + char buf[10]; + ICONV_CONST char *inptr = input; + size_t inbytesleft = strlen (input); + char *outptr = buf; + size_t outbytesleft = sizeof (buf); + size_t res = iconv (cd_utf8_to_88591, + &inptr, &inbytesleft, + &outptr, &outbytesleft); + /* Here: + With glibc, GNU libiconv (including macOS up to 13): res == (size_t)-1, errno == EILSEQ. + With musl libc, NetBSD 10, Solaris 11: res == 1. + With macOS 14.4: res == 0, output is "l". */ + if (res == 0) + result |= 2; + iconv_close (cd_utf8_to_88591); + } + } /* Test against Solaris 10 bug: Failures are not distinguishable from successful returns. */ { @@ -129,7 +159,7 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if (res == 0) - result |= 2; + result |= 4; iconv_close (cd_ascii_to_88591); } } @@ -148,7 +178,7 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD) - result |= 4; + result |= 8; iconv_close (cd_88591_to_utf8); } } @@ -168,7 +198,7 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if ((int)res > 0) - result |= 8; + result |= 16; iconv_close (cd_88591_to_utf8); } } @@ -186,7 +216,7 @@ AC_DEFUN([AM_ICONV_LINK], iconv_t cd4 = iconv_open ("utf8", "eucJP"); if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1) && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1)) - result |= 16; + result |= 32; if (cd1 != (iconv_t)(-1)) iconv_close (cd1); if (cd2 != (iconv_t)(-1)) |